The Dynamox solution was responsible for the early identification of a defect in the bearing housings of a modular vibrating screen.
Located at a client’s plant in Antônio Dias – MG, the vibrating screen is considered a critical asset for the production process and is therefore monitored by Dynamox’s wireless system.
At the end of April 2023, the vibration levels of a sensor installed in the bearing housings of the M1 drive evolved and reached the acceleration and envelope alarm levels in the high frequency region in the vertical and axial directions as shown in the graph below.
In this case, inadequate lubrication characteristics and the onset of mechanical looseness were identified as a result of lubricant contamination.
Below, we will show you some of the tools used to identify the root cause of evolution. Spectral alerts per band were added, where the exponential evolution of levels was identified, pointing out the defect.
We used high-frequency band spectral alerts, which clearly highlighted the evolution of the carpet, prompting immediate re-lubrication.
As shown in the waterfall spectrum, after the bearing housings were replaced, the levels decreased exponentially, leaving the equipment in good working conditions.
With the possibility of using spectral alerts per frequency region band, it is possible to differentiate the types of defects and have a better idea of how to identify these failures so that decisions can be made quickly, as in this case of lubrication failure.
Did you like this content? You can find more cases like this on our blog, in the “success cases” section.
You can also read: Dynamox identifies defect in conveyor tail pulley.
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